Installation of Limesurvey 2.0 RC2

After downloading the limesurvey 2.0RC2 package . When I looked into the folder, it seemed to me that the folder is incomplete because i didn't find config.php file which is necessary during installation process for making changes.
Can anyone tell me what is actual issue with it or I am wrong somewhere.
Thanks in advance.

I have installed limesurvey2.0RC2 on my system. But when I send link of created survey to my friends, it did not open and gave error regarding token tables generation in database.Actuall error message is given below :

The table "{{tokens_242522}}" for active record class "Tokens_dynamic" cannot be found in the database.

No,I have not created any token table because limesurvey itself create complete database during installation so I didn't feel to create it manually.
Here is link to the survey which I have created and attachment too: